Watch Dark Woods II (2015) Official Trailer

They can demolish a building, but never remove the past.

An old sanatorium is deteriorating in an isolated forest in the mountains. Five contract workers have taken on the task of tracking the huge building for hazardous waste before it's demolished. They realize that the job is more than a search for asbestos and mercury when they encounter the building's frightening past. You can demolish a building, but never remove the past.